chore: remove select() from the examples

With the changes in #115 and the previous commit, we can now remove a
bunch of select from the examples and use the new target aliases.

examples/ubuntu_snapshot/BUILD.bazel

@@ -1,6 +1,5 @@
 load("@aspect_bazel_lib//lib:tar.bzl", "tar")
 load("@container_structure_test//:defs.bzl", "container_structure_test")
-load("@rules_distroless//apt:defs.bzl", "dpkg_status")
 load("@rules_distroless//distroless:defs.bzl", "group", "passwd")
 load("@rules_oci//oci:defs.bzl", "oci_image", "oci_load")
 
@@ -46,32 +45,6 @@ tar(
     ],
 )
 
-PACKAGES = [
-    "@noble//ncurses-base",
-    "@noble//libncurses6",
-    "@noble//tzdata",
-    "@noble//bash",
-    "@noble//coreutils",
-    "@noble//dpkg",
-    "@noble//apt",
-    "@noble//perl",
-]
-
-# Creates /var/lib/dpkg/status with installed package information.
-dpkg_status(
-    name = "dpkg_status",
-    controls = select({
-        "@platforms//cpu:arm64": [
-            "%s/arm64:control" % package
-            for package in PACKAGES
-        ],
-        "@platforms//cpu:x86_64": [
-            "%s/amd64:control" % package
-            for package in PACKAGES
-        ],
-    }),
-)
-
 oci_image(
     name = "noble",
     architecture = select({
@@ -83,17 +56,8 @@ oci_image(
         ":sh",
         ":passwd",
         ":group",
-        ":dpkg_status",
-    ] + select({
-        "@platforms//cpu:arm64": [
-            "%s/arm64" % package
-            for package in PACKAGES
-        ],
-        "@platforms//cpu:x86_64": [
-            "%s/amd64" % package
-            for package in PACKAGES
-        ],
-    }),
+        "@noble//:noble",
+    ],
 )
 
 oci_load(